Shore



Patented July 171, 1933A UNiTED STATES rargeererric EARL o. CHILDERS, or KANSAsoIrY, MISSOURI, AssIe'Non frosJoI-IN Ir; THOMPSON, or'

KANSAS CITY, MISSOURI SHORE Application filed February 4, 1929,V Serial This invention relates to shores of that class involving the use of a base member andan adjustable member fitting in telescopic relation, and Vsusceptible of being secured in fixed relationship at any desired point of adjustment, and my object is to produce a Vshore of the general class identified, which is efficient in operation and of simple, strong, durable and inexpensive construction, afurther object being to provide means for preventing accidental separation of the members. Another obj ectv is to provide automatic means to normally clamp the members in fixed relationand manually-operative means for intensifying such clamping action .or for effecting or permitting relaxation of such clamping action. Y l j With these objects in view the invention consists in certain novel and useful features of construction and combinations of parts as hereinafter described and claimed; and in order that it may be fully understood, reference is to be had to the accompanying drawing, in which:

Figure 1 is a fragmentary view partly in side elevation and partly in central vertical section of a shore embodying the invention,

the members of the shore being shown inV vclamped or fixed relation.

Figure 2 is a view showing in section the part appearing in elevation in Figure 1, and

in elevation the partappearing in section in Figure 1. i

Y Figure 3 is a horizontal section taken on the line Ill-HI of Figure 1. j

Figure 4 is atop plan view ofv afitting forming a part of the invention; Y

Referring to the drawing in detail, 1 indicates the base member of the shore, the same being preferably in the form of an upright pipe section and adapted to be equipped at its lower end with a conventional loase,not

shown, for resting upon the ground or-any Y suitable support. The said member is grooved at its upper end ,to provide anupwardlytapering wedge portion 2 and an overlying downwardly-facing stop shoulder 3.

The upper member 4 of the shore fits telescopically onthe base'member and is provided near its lower end with an oHset cham- No. 337,360. Renewed January 18, 1932.

ber 5 containing a locking pin 6 `and a spring 7 for holding the locking pin against the base Vmember and for projecting it yieldingly into algo noted that the upper Award because,in such action, the wedge portion 2 of the base member will effec-t repression or outward movementof the locking pin.

The clamp mechanism for securing theltWo members in fixed relationship 4is constructed as follows: 8 indicates a litting comprising an upright portion.conforming internally to the contour of member 1 and snugly fitting the same, and a top portion orarm 9 projecting beyond the opposite side of, the lastnamed member and conforming internally to and'snugly fittingV the opposite sideof thev latter from the uprightportion 8, the circular opening thus provided by they ytwo p0rtions ofthe fitting beingdiametrical'ly yenrlarged to provide a socletrlO receiving the.`

lower end of the upper member 4, and to secure the fitting and thelast-named member" permanently together, thelower end of the latter is welded to the fitting in said socket or otherwise `firmly secured thereto so that upward or downward movement rof either 'is ,participated in by the other. 'lhe free or outer end of the arnr`9 is bifurcatedras `at 11 for a purpose whichy hereinafter appears, and near the inner end of theblfurcation the arm is ,provided with a depending perforated lug 12. The lower portion ofthe fitting is enlarged so as to afford a relatively Ywide downwardly-facing bottom 13 against which a lifting jack, not shown, or its equiv'- aleut, may bc appliedfor effecting upward movement of the upper 'member when the resistance to such movement is too great to be overcome by manual power. The vfitting is. also provided with va: groovel 14 extending transversely with respect to .thel Aarm `9 and centrally of said groovevthe underlying por-y j lever and cause it to effect clamping action tion is provided with a recess 15 to accommodate downward movement of thehan'dle 16 of a loop-shaped lever. The lever consists of a pair of side portions 17 connected at the 5 handle end by a cylindrical pivot portion 18 engaging the groove lhand at the other end by a cross piece 19 paralleling the pivot portion 18, the cross piece 19 being preferably elongated vertically and projecting toa high-i w er plane than the pivot portion for` facilitat ing the clamping operation.

A aw 20 stands in parallel relation to the fitting 8 at the opposite side of the base mem berand some distance below` the arm 9, said 'J jaw conforming internally to the contour of the base member and having teeth 21 for more effective gripping engagement with said base member. The jaw is also provided with a transverse groovev 22 paralleling groove 14 and receiving the outer portion 19 ofthe loop-shaped lever. At its upper end the jaw is provided with an upstanding perforated lug 23 connected with lug 12 by a retractile spring 24 havinga tendency to pull upward on the jaw and thereby rock the of the fitting and jaw on member 1. The jaw is provided with an upstanding bolt 25 which projects through the bifurcation 11 of arm 9 and is engaged by a hand wheel 26. vThe hand wheel has a depending hub porf tion 27 extending through the bifurcation 11 and provided with a flange 28 at its lower end, the arrangement being such that when the hand wheel is turned suiiiciently in one direction it will bear down on the arm 9 and tend to raise the j aw and thereby through the rocking of the lever, intensify the clamping action of the jaw and `fitting on member 1. Reverse movement of said hand wheel brings the flange 28 against the under side of arm 9 land therefore tends to effect downward pressure onY the jaw and relax the clamping action of the fitting andjaw on member V1. In this connection it should be Vstated that these operationscan be performed effectively as explained only when the shore is lightly loaded. "When carrying a heavy load it is impracticable to turn the wheel by 'hand for release purposes after the flange 28 abuts arm 9,' and the release in such case is effected by striking downward upon the upper end of the jaw with ahammer, it being understood that the fitting and jaw will be made of metal to withstand suchv treatment. Assuming that the parts are in operative position with the fitting andpjaw clamped per member adjusted upward nearly to its limit, as shown, it will be notedl that the hub flange 28 is away from the lower side of the arm 9. If there is no heavy load on the shore, the operator can grasp and turn the wheel 26`and thus effect downward movement of the 65 jaw so that the upper member together with thelitting and jaw may slide. downward on Ythe base member, this movement continuing 1f desired until the shoulder 3 v desired to raise the upper member, the operator applies lifting force to the handle 16.` This action at first results in cross piece 19 forcing the jaw downwardlyand outwardly to withdraw it from clamping engagement with member 1, and then causes the fitting and jaw together with the member Ll, to move upward the requisite distance, the swing of the lever around its portion ll being limitedv by abutment of the portion 17 with stop 17 a, at which rtime the loop-shapedlever is in horizontal position, the release ofthe handle rcsulting in the automatic reelamping action of the fitting and jawsA i If a load is imposed on the shore and it is desired to lift said load,'force is applied upf wardly on the fitting by means of a jackV or other power appliance, and upon the removal of such force the fitting and jaw automatically hold thev members in fixed relationship.

The hand wheel 26 will now be screwed down tight as shown in the drawing to .increase the clamping pressure'and at the same time to supply slack or space between flange 2bV and the lower face` of arm 9 to accommodate settlmg should the load increase. Y i

From the Vabove description it Vwillbe apparentk that I have produced a shore which embodies the features of advantage set forth as desirable in the statement of the'objects of the invention, and which may be modified in minor particulars without departing from the principle`of,construction and mode of around the lower member 'andat lits lower *it end partly around the lowerk member, and provided 1n its lower portion with a pivot groove; said extension having an outwardly projecting arm at itsupper end atthe `opposite side of the Alower member from'saidti groove, a jaw underlying said arm 'and'disposed adjacent the lower member at the Vdia- `metrically opposite side thereof from said groove and provided with-a' threaded arm 'Y extending up through said arm of the said eX L tension, a nut'bearing.Y upon said Vextension l vand rotatable-relative thereto and engaging Yfirmly against the lower member and the up-V said threaded arm, and a lever pivoted in the pivot groove and vfitting around the lower member and engaging the said j aw for clamping the latter againstthe lower member. A

2. In a shore',a fiXe'd lower member, anupper member fitting telescopically on the lower member, a depending extensionforthe upper member fitting at' its upper end entirely iso around the lower member and at its lower end partly around the lower member, said extension having an outwardly projecting arm at its upper end at the opposite side of the lower member from said groove, a jaw underlying said arm and disposed adjacent the lower member at the dametrically opposite side thereof from said groove and provided with a threaded arm extending upthrough said arm of the said extension, a nut bearing upon said extension andl rotatable relative thereto and engaging said threaded arm; a retractile spring between and connecting the arm of said extension and the underlying jaw, and a lever pivoted to the said extension and fitting around the lower member and adapted for clamping the jaw against the lower member.

3. In a shore, al pair of telescopic members, the external member being cut away throughout a part of its length to expose the the inner member and being provided with a stop shoulder, a yoke member pivotally mounted on the external member and having a cam portion on the opposite side of the shore and spaced from the exposed portion' of the inner member, said yoke being limited in its movement in one direction through c ontact with said stop shoulder, and a jaw interposed between said cam portion of the yoke and the inner member, and a stem extending from said jaw and adjustably secured tothe yoke member.

4. In ashore, a pair of telescopic members,

the external'member being cutaway through a part of its length to expose the inner member, a yoke pivotally mounted onthe external member and enclosing the inner member and provided with an operating handle, a jaw vertically adjustable relative to the outer member and engaging the inner `member A within the yoke and at the opposite side of said member from the yoke handle, the jaw having parts overlying and underlying the yoke to insure movement of the jaw responsive to pivotal action of the yoke upwardly or downwardly, and means connected to the jaw and operable to apply pressure upward! ly or downwardly on the outer member to intensify or relax the clamping pressure of the aw on the inner member applied by the load of the outer member through the pivot ed yoke.

In testimony whereof affix myl signature.A

EARL oJoHiLnEas. 

